在干旱条件下分析Atraphaxis bracteata的全长转录组和耐药性特征
1College of Forestry, Gansu Agricultural University, Lanzhou, 730000, China.
Scientific reports
|January 4, 2025
概括
干旱压力影响沙漠植物,如Atraphaxis bracteata通过减少生长,但增加透物质和抗氧化活性. 分子分析揭示了关键基因参与植物对干旱的反应.
科学领域:
- 植物生物学 植物生物学
- 环境压力生理学生理学
- 分子生态学分子生态学
背景情况:
- 干旱是影响植物生存和生长的主要环境压力因素.
- 阿特拉法西斯 (Atraphaxis bracteata) 是一种重要的沙漠植物,用于植树和打击荒漠化.
研究的目的:
- 研究Atraphaxis bracteata对干旱压力的形态,生理和分子反应.
- 为了确定关键的基因和途径参与干旱耐受性在这个物种.
主要方法:
- 在不同干旱条件下的形态和生理测量.
- Iso-Seq和RNA-Seq用于全面的转录组分析.
- 差异表达转录 (DET) 和替代拼接 (AS) 事件的识别.
主要成果:
- 干旱压力减少了幼苗的高度,根长和叶面积,同时增加了透物质含量和抗氧化酶活性.
- 产生了大量的转录组数据,包括注释转录,全长非化学 (FLNC) 序列和循环共识序列 (CCS).
- 差异基因表达分析在根,茎和叶子中发现了许多DET,这些DET在"昼夜节律植物"和"粉和糖代谢"途径中显著丰富.
结论:
- 阿特拉法西斯 (Atraphaxis bracteata) 呈现出显著的形态和生理适应干旱的情况.
- 这项研究为了解干旱应激反应机制提供了宝贵的转录学资源.
- 已识别的DET和路径为改善Atraphaxis bracteata的抗干旱能力提供了目标.
相关概念视频
01:57Adaptations that Reduce Water Loss
25.1K
Though evaporation from plant leaves drives transpiration, it also results in loss of water. Because water is critical for photosynthetic reactions and other cellular processes, evolutionary pressures on plants in different environments have driven the acquisition of adaptations that reduce water loss.
25.1K
02:41Responses to Drought and Flooding
10.6K
Water plays a significant role in the life cycle of plants. However, insufficient or excess of water can be detrimental and pose a serious threat to plants.
10.6K
02:02Responses to Salt Stress
13.0K
Salt stress—which can be triggered by high salt concentrations in a plant’s environment—can significantly affect plant growth and crop production by influencing photosynthesis and the absorption of water and nutrients.
13.0K
01:10Transcription
146.6K
Overview
Transcription is the process of synthesizing RNA from a DNA sequence by RNA polymerase. It is the first step in producing a protein from a gene sequence. Additionally, many other proteins and regulatory sequences are involved in the proper synthesis of messenger RNA (mRNA). Regulation of transcription is responsible for the differentiation of all the different types of cells and often for the proper cellular response to environmental signals.
Transcription Can Produce Different Kinds...
Transcription is the process of synthesizing RNA from a DNA sequence by RNA polymerase. It is the first step in producing a protein from a gene sequence. Additionally, many other proteins and regulatory sequences are involved in the proper synthesis of messenger RNA (mRNA). Regulation of transcription is responsible for the differentiation of all the different types of cells and often for the proper cellular response to environmental signals.
Transcription Can Produce Different Kinds...
146.6K
02:04Regulation of Transpiration by Stomata
27.8K
During photosynthesis, plants acquire the necessary carbon dioxide and release the produced oxygen back into the atmosphere. Openings in the epidermis of plant leaves is the site of this exchange of gasses. A single opening is called a stoma—derived from the Greek word for “mouth.” Stomata open and close in response to a variety of environmental cues.
27.8K